Cloth-shearing mechanism



se t 15, 1925;

E. H. MARBLE CLOTH SHEARING MECHANISM Filed; June 5. 1924 Patented Sept. 15, 1925.

UNITED s r'A sI EDWIN H. MARBLE, or woncnsraa, mssacnesm'aissmmato concurs & Imam MACHINE COMPANY, OF WORCESTER, MASSACHUSETTS, A conroaa TION OF MASSACHUSETTS.

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f 1 i 7 Application filed June 5,

To'allwhom it concern:

Be it known that I, EDWIlQ :H. MARBLE, a citizen of the United States, residing at Worcester, in the county-of Worcester and State of- Massachusetts, have invented certain new and useful "Improvements in Cloth- Shearing Mechanism, of which the following isa specification. v

This invention relates to the novel'construction of supporting rests for employment in cloth; shearing machines, and the combination thereof with-the she'aring'revolver andledger-blade in machines of the class specified; the prime object being to provide an efiicientand desirable means adapted asset forth for the-production of designs of a peculiar type, upon the'surface of a sheared fabrica f {1 I Another object isto provide 'anassembled revolvable rest, of; interchangeable disk structure; the members of [which can be readily re-assembled for forming a variety of patterns.

Another object is to provide an assembled rest for thepurposespecified, of interchangeable'structure, including a system of separate "plates and intervening spacing members' arranged on a rotatable shaft and adapted forforming patterns composed of series of dashes or broken lines, in various relations; or figuresiincluding such broken lines 1 combined with 'continuous lines; change of figure being attained by re-assembling th'e disks or plates in their relative order or positions. J T I A further object is to'provide-a cylindrical rest for the purpose specified comprising an assemblage of individually formed disks or plates interchangeably mounted and confined .upon an axial shaft and externally presenting a system of segmental peripheral surfaces and intervening depressions, said disks or plates adapted-for interchangeable re-assembling for varying the designs produced upon the sheared fabrics.

These objects' l attaimby a rest of the peculiar construction described, and its adaptation for use with the shearing cutters and operating means employed in a cloth shearing machine, as more fully hereinafter set forth; the particular subjectmatter claimed being definitely specified.

In the drawings Fig. 1 is a sectional view 1924; sea-a1 o; 715,013.

ofsuch parts of a cloth shearing machine as will il'lustra'tethe nature of my invention. Fig;"2 isa side view'of my improved cloth supporting rest.

Figs. 3 and 4; represent forms of intercliangeabledisks 'or'plates such as {employed in the'construction' of the rest.

Fig. 5isa cross-section of therest at line XX,on*Fig.2; Q"

Fig. 6 shows one of the inter space members or washers. r

"Fig. 7 represents a modification wherein occasional individual annular disks formed with 'full circle peripheral edges are asse'mbled in association with 'tlie "series of peripherally segment-faced or recessed'annula'r"disks, in a' I rotatable cloth-shearing rest; and Fig. 8 is a side'wiewof the full circledisk, equal to the diameterof the'segmerit-faced disks employed.

Referring toj'the drawing, numeral-1 indi-* cates the cutter-supporting frame of a clothsh'ea'r'ing 'rnachine; 2 indicates the revolving cutterfcylinden; commonly termed the revolver; 3 the*ledger-bla'de' 'or' stationary k nife-jfand 4; the'me'ans' for adjusting the cutter frame up or down for regulating the cutinfrelation tothe fabric to be sheared; all of which' parts may be of well known construction andoperated by mechanism of the usual character, and need not be herein more fully described;

'Nuineral' 5 indicates 'my improved cloth supportingre'st, which, in accordance with my invention, isfco'mposed of a series of comparatively thin annular disks or plates 6 about four inches, more or less, in-diamete'r, and about one quarter inch, more or less, in thickness; said disks are assembled together with annular washers or spacing members 7, of"less"diameter, upon an axial shaft 8 whereon "they are removably but rigidlysecured' or confined between nuts 9 screw threaded on the shaft, or by other efficient fastening means a' sufficient number of'said" disks "andspaci'ng members being assembled in series to fill the entire length required for the rest.

The edges of the disks 6 are shaped with protuberant segmental peripheral surfaces 10, alternating with recesses, or cut-away spaces 12, as best shown in Fig. 3 or Fig. 4. The relative dimensions and number of such surfaces and recesses about the circumference of the disk maybe varied in different instances. The central holes in the disks and intervening washers, are uniformly made to concentrically fit the axial shaft 8, upon which said disks are interchangeably mounted and are arrangeable to afford some variety in the relative position of their assembled surfaces 10, in respect to the ex terior of the rest. The intervening washers or spacing members 7 may be made of such thickness as in any instance required.

The shaft 8 is provided with journals 18,. to be supported in bearings upon the shearing machine; and with a suitable pulley or gear 15 if it is desired to rotate the rest by power. I

In some instances, the disks .6 may be formed with different lengths of the segment surfaces 10,, and assembled so. as to produce irregular cut-out designs. Also, disks having segmental or incomplete peripheral lines may, in some instances, be associated with disks 6 having complete peripheral lines.

The disks can be arranged and secured in fixed relation upon the axial .shaft 8 more-or less close together, or separated by washers 7 of greater or less: thickness according. to the design or pattern that it is desired to produce.

The working position of the rest in relation to the shearing revolver 2, and blade 3., is'approximately as shown on Fig. 1; the cloth or fabric, indicated by dotted line F, passing over the rest beneath the shearing cutters. in the direction of the arrow. The rest 5 may be rotated by the friction and 1 11; of the cloth thereon; or it can be rotatedby power applied to the pulley or wheel 15. on its shaft 8, and may when de sired have, a surfacemovement greater or less than the speed at which the. cloth travels.

The nuts or fasteners 9 are made to hold the assemblage of plates. entirely rigid upon the shaft 8' as a unitary structure, but said fasteners are conveniently releasable, and when one (or both) is released the series of plates 6 and washers 7 can be readily dispatterns or figures, in the general style or character above mentioned, can be produced with a single rest, rearranged as to its component. without requiring an en- 1 tire; new rest for every individual pattern.

Furthermore this invention renders it economically practical to produce a certain class of patterns that have not heretofore been considered as available.

I claim- 1. A rotatable cloth-supporting rest comprising a series of separately formed interchangeable annular supporting plates, and intervening spacing washers, assembled and secured upon a central axial shaft, said series including plates having peripheraledge faces of circumferentially alternated protuberant segmental-portions and recessed portions, as set forth.

2. A revolvable rest for the purpose specified, comprising a plurality of annular disks or plates and intervening smaller sized Washers arrranged and rigidly confined upon anaxial shaft, the periphery of said plates having cloth-supporting faces and recessed portions alternately about their circumferenoe.

3. A rest for cloth shearing machines, comprising an assemblage of separate annular plates and intervening spacing members, said plates having their peripheral edges variedly provided with alternate seg ment surfaces and recessed spaces, an axis shaft upon which said plates are interchangeably supported, and means for rigidly securing the assembled parts together as a unitary cylindrical structure.

4. A revolvable rest including an interchangeable series of separately formed annular disk-like plates, a part of them having predetermined portions of the periphery reduced to form recesses in their circumference. outline, an axial shaft upon which said plates are assembled, means for releasably confining said plates in position thereon, and means for rotation of said rest in coaction with the cutting-revolver and ledger blade in a cloth shearing machine.

- 5-. In a mechanism for shearing textile fabrics, a revolvable. cloth-supporting rest composed of a series of narrow interchangeable annular members adjacently assembled and secured between removable nuts upon a central shaft, and peripherally presenting a systemof segment surfaces and depressed spaces, said members adapted for varied relative arrangement in respect to each other, means for supportingsaid rest, and means for rotating the rest in conjunction with the shearing cutters and fabric feed, as set forth.

EDWIN MARBLE. 

